An explication of the 800-day COVID-19 pandemic spread behaviour of seven countries from different continents and the world total in a non-linear time series framework
Abstract:The time series consisting of 800-day COVID-19 spread data from USA, Germany, Brazil, India, Japan, Egypt, Turkey, and world total taken from the Our World in Data database, was analysed within the framework of non-linear time series. Correlogram diagrams, Fourier power spectra and Lyapunov exponents were examined for each series and it was seen that they did not behave linearly. For these non-linear time series, the lag time and embedded dimension were calculated and 3-dimensional phase spaces for each case w… Show more
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